feat: Implement feature to list all employees from a project (SCRUM-46) (!36)

Co-authored-by: Phan Huy Tran <p.tran@neusta.de>
Reviewed-on: #36

requests/employee/createEmployee.http

@@ -3,10 +3,13 @@ Authorization: Bearer {{auth_token}}
 Content-Type: application/json
 
 {
-  "firstName": "Jan",
-  "lastName": "Klattenhoff",
-  "street": "Pirolweg 17",
+  "firstName": "Jan1",
+  "lastName": "Klattenhoff1",
+  "street": "Pirolweg 171",
   "postcode": "27777",
-  "city": "Gandakersee",
-  "phone": "017684984816"
+  "city": "Gandakersee1",
+  "phone": "0176849848161",
+  "skillSet": [
+    "1"
+  ]
 }

requests/employee/getEmployee.http

@@ -1,2 +1,2 @@
-GET https://employee.szut.dev/employees/312
+GET https://employee.szut.dev/employees/315
 Authorization: Bearer {{auth_token}}

requests/project/createProject.http

@@ -6,7 +6,7 @@ Content-Type: application/json
 {
   "name": "name",
   "leading_employee": 1,
-  "employees": [2, 3],
+  "employees": [315, 312],
   "contractor": 4,
   "contractor_name": "Peter File",
   "comment": "goal of project",

requests/project/getEmployeesFromProject.http

@@ -0,0 +1,2 @@
+GET http://localhost:8080/projects/2/employees
+Authorization: Bearer {{auth_token}}

src/main/java/de/szut/lf8_starter/employee/EmployeeService.java

@@ -1,5 +1,7 @@
 package de.szut.lf8_starter.employee;
 
+import de.szut.lf8_starter.exceptionHandling.ResourceNotFoundException;
+import de.szut.lf8_starter.project.dto.employee.GetEmployeeDto;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
@@ -31,4 +33,19 @@ public class EmployeeService {
 
         return true;
     }
+
+    public GetEmployeeDto getEmployee(String accessToken, Long employeeId) {
+        HttpHeaders headers = new HttpHeaders();
+        headers.setBearerAuth(accessToken.replace("Bearer ", ""));
+
+        HttpEntity<String> requestEntity = new HttpEntity<>(headers);
+
+        String url = "https://employee.szut.dev/employees/" + employeeId;
+
+        try {
+            return restTemplate.exchange(url, HttpMethod.GET, requestEntity, GetEmployeeDto.class).getBody();
+        } catch (HttpClientErrorException.NotFound e) {
+            throw new ResourceNotFoundException("Employee not found");
+        }
+    }
 }

src/main/java/de/szut/lf8_starter/exceptionHandling/GlobalExceptionHandler.java

@@ -30,7 +30,7 @@ public class GlobalExceptionHandler {
     @ExceptionHandler(Exception.class)
     public ResponseEntity<ErrorDetails> handleAllOtherExceptions(Exception ex, WebRequest request) {
         ErrorDetails errorDetails = new ErrorDetails(new Date(), ex.getClass() + " " + ex.getMessage(), request.getDescription(false));
-
+        
         return new ResponseEntity<>(errorDetails, HttpStatus.INTERNAL_SERVER_ERROR);
     }
 

src/main/java/de/szut/lf8_starter/project/action/RemoveProjectAction.java

@@ -2,14 +2,17 @@ package de.szut.lf8_starter.project.action;
 
 import de.szut.lf8_starter.project.ProjectEntity;
 import de.szut.lf8_starter.project.ProjectService;
-import de.szut.lf8_starter.project.dto.GetProjectDto;
+import de.szut.lf8_starter.project.dto.project.GetProjectDto;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
 import java.util.Optional;
 

src/main/java/de/szut/lf8_starter/project/action/crud/CreateProjectAction.java

@@ -1,10 +1,10 @@
 package de.szut.lf8_starter.project.action.crud;
 
 import de.szut.lf8_starter.project.ProjectEntity;
-import de.szut.lf8_starter.project.ProjectMapper;
 import de.szut.lf8_starter.project.ProjectService;
-import de.szut.lf8_starter.project.dto.CreateProjectDto;
-import de.szut.lf8_starter.project.dto.GetProjectDto;
+import de.szut.lf8_starter.project.dto.project.CreateProjectDto;
+import de.szut.lf8_starter.project.dto.project.GetProjectDto;
+import de.szut.lf8_starter.project.mapper.ProjectMapper;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;

src/main/java/de/szut/lf8_starter/project/action/crud/GetAllProjectsAction.java

@@ -1,8 +1,8 @@
 package de.szut.lf8_starter.project.action.crud;
 
-import de.szut.lf8_starter.project.ProjectMapper;
 import de.szut.lf8_starter.project.ProjectService;
-import de.szut.lf8_starter.project.dto.GetProjectDto;
+import de.szut.lf8_starter.project.dto.project.GetProjectDto;
+import de.szut.lf8_starter.project.mapper.ProjectMapper;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;

src/main/java/de/szut/lf8_starter/project/action/crud/GetProjectAction.java

@@ -1,9 +1,9 @@
 package de.szut.lf8_starter.project.action.crud;
 
 import de.szut.lf8_starter.project.ProjectEntity;
-import de.szut.lf8_starter.project.ProjectMapper;
 import de.szut.lf8_starter.project.ProjectService;
-import de.szut.lf8_starter.project.dto.GetProjectDto;
+import de.szut.lf8_starter.project.dto.project.GetProjectDto;
+import de.szut.lf8_starter.project.mapper.ProjectMapper;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;

src/main/java/de/szut/lf8_starter/project/action/crud/UpdateProjectAction.java

@@ -1,10 +1,10 @@
 package de.szut.lf8_starter.project.action.crud;
 
 import de.szut.lf8_starter.project.ProjectEntity;
-import de.szut.lf8_starter.project.ProjectMapper;
 import de.szut.lf8_starter.project.ProjectService;
-import de.szut.lf8_starter.project.dto.GetProjectDto;
-import de.szut.lf8_starter.project.dto.UpdateProjectDto;
+import de.szut.lf8_starter.project.dto.project.GetProjectDto;
+import de.szut.lf8_starter.project.dto.project.UpdateProjectDto;
+import de.szut.lf8_starter.project.mapper.ProjectMapper;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;

src/main/java/de/szut/lf8_starter/project/action/employee/GetEmployeeFromProjectAction.java

@@ -0,0 +1,51 @@
+package de.szut.lf8_starter.project.action.employee;
+
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.ProjectService;
+import de.szut.lf8_starter.project.dto.employee.GetEmployeesFromProjectDto;
+import de.szut.lf8_starter.project.mapper.EmployeeFromProjectMapper;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Optional;
+
+@RestController
+public class GetEmployeeFromProjectAction {
+    private final ProjectService projectService;
+    private final EmployeeFromProjectMapper employeeFromProjectMapper;
+
+    public GetEmployeeFromProjectAction(ProjectService projectService, EmployeeFromProjectMapper employeeFromProjectMapper) {
+        this.projectService = projectService;
+        this.employeeFromProjectMapper = employeeFromProjectMapper;
+    }
+
+    @Operation(summary = "Get all employees from project")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "Outputs projects with employees"),
+            @ApiResponse(responseCode = "404", description = "Project not found", content = @Content)
+    })
+    @GetMapping("/projects/{projectId}/employees")
+    public ResponseEntity<Object> create(
+            @PathVariable Long projectId,
+            @RequestHeader("Authorization") String accessToken
+    ) {
+        Optional<ProjectEntity> project = projectService.findById(projectId);
+
+        if (project.isEmpty()) {
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        GetEmployeesFromProjectDto getEmployeesFromProjectDto = this.employeeFromProjectMapper
+                .mapToGetEmployeesFromProjectDto(project.get(), accessToken);
+
+        return new ResponseEntity<>(getEmployeesFromProjectDto, HttpStatus.OK);
+    }
+}

src/main/java/de/szut/lf8_starter/project/dto/employee/EmployeeDto.java

@@ -1,4 +1,4 @@
-package de.szut.lf8_starter.project.dto;
+package de.szut.lf8_starter.project.dto.employee;
 
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.databind.annotation.JsonNaming;

src/main/java/de/szut/lf8_starter/project/dto/employee/GetEmployeeDto.java

@@ -0,0 +1,11 @@
+package de.szut.lf8_starter.project.dto.employee;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class GetEmployeeDto {
+    private long id;
+    private GetSkillDto[] skillSet;
+}

src/main/java/de/szut/lf8_starter/project/dto/employee/GetEmployeesFromProjectDto.java

@@ -0,0 +1,17 @@
+package de.szut.lf8_starter.project.dto.employee;
+
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.ArrayList;
+
+@Getter
+@Setter
+@JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
+public class GetEmployeesFromProjectDto {
+    private long projectId;
+    private String projectDescription;
+    private ArrayList<GetEmployeeDto> employees;
+}

src/main/java/de/szut/lf8_starter/project/dto/employee/GetSkillDto.java

@@ -0,0 +1,13 @@
+package de.szut.lf8_starter.project.dto.employee;
+
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
+public class GetSkillDto {
+    private String skill;
+}

src/main/java/de/szut/lf8_starter/project/dto/project/CreateProjectDto.java

@@ -1,4 +1,4 @@
-package de.szut.lf8_starter.project.dto;
+package de.szut.lf8_starter.project.dto.project;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;

src/main/java/de/szut/lf8_starter/project/dto/project/GetProjectDto.java

@@ -1,4 +1,4 @@
-package de.szut.lf8_starter.project.dto;
+package de.szut.lf8_starter.project.dto.project;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;

src/main/java/de/szut/lf8_starter/project/dto/project/UpdateProjectDto.java

@@ -1,4 +1,4 @@
-package de.szut.lf8_starter.project.dto;
+package de.szut.lf8_starter.project.dto.project;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;

src/main/java/de/szut/lf8_starter/project/mapper/EmployeeFromProjectMapper.java

@@ -0,0 +1,35 @@
+package de.szut.lf8_starter.project.mapper;
+
+import de.szut.lf8_starter.employee.EmployeeService;
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.dto.employee.GetEmployeeDto;
+import de.szut.lf8_starter.project.dto.employee.GetEmployeesFromProjectDto;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+
+@Service
+public class EmployeeFromProjectMapper {
+    private final EmployeeService employeeService;
+
+    public EmployeeFromProjectMapper(EmployeeService employeeService) {
+        this.employeeService = employeeService;
+    }
+
+    public GetEmployeesFromProjectDto mapToGetEmployeesFromProjectDto(ProjectEntity projectEntity, String accessToken) {
+        GetEmployeesFromProjectDto getEmployeesFromProjectDto = new GetEmployeesFromProjectDto();
+        getEmployeesFromProjectDto.setProjectId(projectEntity.getId());
+        getEmployeesFromProjectDto.setProjectDescription(projectEntity.getComment());
+
+        ArrayList<GetEmployeeDto> employeeDtos = new ArrayList<>();
+        for (long id : projectEntity.getEmployees()) {
+            GetEmployeeDto getEmployeeDto = this.employeeService.getEmployee(accessToken, id);
+
+            employeeDtos.add(getEmployeeDto);
+        }
+
+        getEmployeesFromProjectDto.setEmployees(employeeDtos);
+
+        return getEmployeesFromProjectDto;
+    }
+}

src/main/java/de/szut/lf8_starter/project/mapper/ProjectMapper.java

@@ -1,8 +1,9 @@
-package de.szut.lf8_starter.project;
+package de.szut.lf8_starter.project.mapper;
 
-import de.szut.lf8_starter.project.dto.CreateProjectDto;
-import de.szut.lf8_starter.project.dto.GetProjectDto;
-import de.szut.lf8_starter.project.dto.UpdateProjectDto;
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.dto.project.CreateProjectDto;
+import de.szut.lf8_starter.project.dto.project.GetProjectDto;
+import de.szut.lf8_starter.project.dto.project.UpdateProjectDto;
 import org.springframework.stereotype.Service;
 
 @Service

src/test/java/de/szut/lf8_starter/integration/project/GetEmployeesFromProjectTest.java

@@ -0,0 +1,82 @@
+package de.szut.lf8_starter.integration.project;
+
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.ProjectRepository;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.*;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestTemplate;
+
+import java.time.LocalDate;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc(addFilters = false)
+class GetEmployeesFromProjectTest {
+    @Autowired
+    private MockMvc mockMvc;
+    @Autowired
+    private ProjectRepository projectRepository;
+    @Autowired
+    private RestTemplate restTemplate;
+
+    @Test
+    void getEmployeesFromProjectTest() throws Exception {
+        ProjectEntity project = new ProjectEntity();
+        project.setId(1);
+        project.setComment("comment");
+        project.setContractor(1);
+        project.setContractorName("contractorName");
+        project.setEndDate(LocalDate.of(2024, 1, 1));
+        project.setLeadingEmployee(1);
+        project.setName("name");
+        project.setStartDate(LocalDate.of(2021, 1, 1));
+        project.setEmployees(List.of(315L));
+        this.projectRepository.save(project);
+
+        this.mockMvc.perform(get("/projects/1/employees")
+                        .header(HttpHeaders.AUTHORIZATION, getBearerToken())
+                ).andExpect(status().isOk())
+                .andExpect(jsonPath("project_id").value(1))
+                .andExpect(jsonPath("project_description").value("comment"))
+                .andExpect(jsonPath("employees[0].id").value(315))
+                .andExpect(jsonPath("employees[0].skillSet[0].skill").value("Product Owner"));
+    }
+
+    @Test
+    void getEmployeesFromProjectShouldReturnNotFoundResponseWhenProjectIsNotFound() throws Exception {
+        this.mockMvc.perform(get("/projects/1111/employees")
+                .header(HttpHeaders.AUTHORIZATION, getBearerToken())
+        ).andExpect(status().isNotFound());
+    }
+
+    private String getBearerToken() {
+        String url = "https://keycloak.szut.dev/auth/realms/szut/protocol/openid-connect/token";
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
+
+        MultiValueMap<String, String> map = new LinkedMultiValueMap<>();
+        map.add("grant_type", "password");
+        map.add("client_id", "employee-management-service");
+        map.add("username", "user");
+        map.add("password", "test");
+
+        HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(map, headers);
+
+        ResponseEntity<Map> response = this.restTemplate.exchange(url, HttpMethod.POST, request, Map.class);
+
+        return Objects.requireNonNull(response.getBody()).get("access_token").toString();
+    }
+}